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// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Note: ported from Chromium commit head: a9d98e6
#ifndef NATIVE_PIXMAP_HANDLE_H_
#define NATIVE_PIXMAP_HANDLE_H_
#include <vector>
#include "base/file_descriptor_posix.h"
namespace media {
// NativePixmapPlane is used to carry the plane related information for GBM
// buffer. More fields can be added if they are plane specific.
struct NativePixmapPlane {
// This is the same value as DRM_FORMAT_MOD_INVALID, which is not a valid
// modifier. We use this to indicate that layout information
// (tiling/compression) if any will be communicated out of band.
static constexpr uint64_t kNoModifier = 0x00ffffffffffffffULL;
NativePixmapPlane();
NativePixmapPlane(int stride,
int offset,
uint64_t size,
uint64_t modifier = kNoModifier);
NativePixmapPlane(const NativePixmapPlane& other);
~NativePixmapPlane();
// The strides and offsets in bytes to be used when accessing the buffers via
// a memory mapping. One per plane per entry.
int stride;
int offset;
// Size in bytes of the plane.
// This is necessary to map the buffers.
uint64_t size;
// The modifier is retrieved from GBM library and passed to EGL driver.
// Generally it's platform specific, and we don't need to modify it in
// Chromium code. Also one per plane per entry.
uint64_t modifier;
};
struct NativePixmapHandle {
NativePixmapHandle();
NativePixmapHandle(const NativePixmapHandle& other);
~NativePixmapHandle();
// File descriptors for the underlying memory objects (usually dmabufs).
std::vector<base::FileDescriptor> fds;
std::vector<NativePixmapPlane> planes;
};
} // namespace media
#endif // NATIVE_PIXMAP_HANDLE_H_
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